656416032601 has 16 divisors (see below), whose sum is σ = 751911911424. Its totient is φ = 561352184784.

The previous prime is 656416032557. The next prime is 656416032637. The reversal of 656416032601 is 106230614656.

It is a cyclic number.

It is not a de Polignac number, because 656416032601 - 2⁷ = 656416032473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656416032101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5297116 + ... + 5419618.

It is an arithmetic number, because the mean of its divisors is an integer number (46994494464).

Almost surely, 2^656416032601 is an apocalyptic number.

It is an amenable number.

656416032601 is a deficient number, since it is larger than the sum of its proper divisors (95495878823).

656416032601 is a wasteful number, since it uses less digits than its factorization.

656416032601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124260.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 656416032601 in words is "six hundred fifty-six billion, four hundred sixteen million, thirty-two thousand, six hundred one".